Wireless headset



FIG. 1 is a perspective view of a wireless headset showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a side elevational view thereof; and,

FIG. 7 is a side elevational view thereof. 

The ornamental design for wireless headset, as shown and described. 